TY - GEN
T1 - Performance of self-drilling screw connections for structural pultruded fibre reinforced polymer composites
AU - Cai, Z.
AU - Bai, Y.
AU - Bank, L. C.
AU - Qiu, C.
AU - Zhao, X. L.
N1 - Funding Information:
The authors are grateful for support from the Australian Research Council through the Linkage scheme (LP180101080). Thanks are also due for the technical support for the experimental program at Monash University.
Publisher Copyright:
© 2022 the Author(s).
PY - 2023
Y1 - 2023
N2 - Self-drilling screw is an efficient and cost-effective connection method for lightweight structural members. In this work, the performance of self-drilling screw connections for fibre reinforced polymer (FRP) structural members was investigated, considering the application for joining FRP plates to square hollow sections (SHS). To understand the resistance to pull-out loads, pull-out experiments were conducted on connection specimens consisting of FRP plates joined to FRP SHS at a right angle. The specimens were prepared with difference in pultrusion direction of the FRP plate, screw gauge size, and coarseness of screw threads. The specimens with the pultrusion direction oriented transversely in the FRP plates exhibited a flexural failure of the plates and the lowest connection strength. The other specimens with the pultrusion direction oriented longitudinally in the FRP plates failed by the screws pulled out from the FRP SHS profiles. The increase in screw gauge size and thread coarseness was found beneficial to the ultimate connection strength. A simplified analytical equation was developed to estimate the strengths of the specimens with longitudinal pultrusion direction in the FRP plates.
AB - Self-drilling screw is an efficient and cost-effective connection method for lightweight structural members. In this work, the performance of self-drilling screw connections for fibre reinforced polymer (FRP) structural members was investigated, considering the application for joining FRP plates to square hollow sections (SHS). To understand the resistance to pull-out loads, pull-out experiments were conducted on connection specimens consisting of FRP plates joined to FRP SHS at a right angle. The specimens were prepared with difference in pultrusion direction of the FRP plate, screw gauge size, and coarseness of screw threads. The specimens with the pultrusion direction oriented transversely in the FRP plates exhibited a flexural failure of the plates and the lowest connection strength. The other specimens with the pultrusion direction oriented longitudinally in the FRP plates failed by the screws pulled out from the FRP SHS profiles. The increase in screw gauge size and thread coarseness was found beneficial to the ultimate connection strength. A simplified analytical equation was developed to estimate the strengths of the specimens with longitudinal pultrusion direction in the FRP plates.
UR - http://www.scopus.com/inward/record.url?scp=85145578244&partnerID=8YFLogxK
U2 - 10.1201/9781003348443-245
DO - 10.1201/9781003348443-245
M3 - Conference article published in proceeding or book
AN - SCOPUS:85145578244
SN - 9781003348443
T3 - Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022
SP - 1503
EP - 1508
BT - Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022
A2 - Zingoni, Alphose
PB - CRC Press/Balkema
T2 - 8th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2022
Y2 - 5 September 2022 through 7 September 2022
ER -